Process to Monitor Unwanted Formation of a Polymer having Internal Strain by Acoustic Emission Analysis

a technology of acoustic emission analysis and unwanted formation, applied in the field of process to monitor unwanted formation of a polymer having internal mechanical strain, can solve problems such as technical problems

Active Publication Date: 2013-11-14
TOTAL RES & TECH FELUY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables early detection and prevention of popcorn polymer formation, reducing the risk of equipment plugging and damage by alerting operators to take corrective action before complete plugging or destruction occurs, thus maintaining equipment functionality.

Problems solved by technology

It would not depart of the scope of the invention to have the acoustic sensor(s) located in the volume in which the unwanted formation of polymer occurs but it could lead to technical problems.

Method used

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Examples

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Comparison scheme
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Embodiment Construction

[0023]As regards the monomer which polymerize to make polymers having internal mechanical strain mention may be made of vinyl monomers in general, and not only to a single vinyl monomer but also to a mixture of two or more vinyl monomers. Such vinyl monomer may be α,β-unsaturated carboxylic acids and esters thereof, ethylene, propylene, 1,3-butadiene, isoprene, dimethyl-2,3-buta-1,3-diene, chloroprene, bromoprene, styrene, divinylbenzene, styrene containing traces of divinylbenzene, vinyltoluene, vinyl chloride and the like. α,β-unsaturated carboxylic acids and esters thereof include, for example, acrylic acid, methyl acrylate, ethyl acrylate, n-butyl acrylate, i-butyl acrylate, stearyl acrylate, 2-ethylhexyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 4-hydroxybutyl acrylate, ethylene glycol diacrylate, glycidyl acrylate, 2-ethoxyethyl acrylate, tetrahydrofurfuryl acrylate, cyclohexyl acrylate, benzyl acrylate, allyl acrylate, t-butyl acrylate, 1,6-hexanediol diacr...

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Abstract

A process to monitor unwanted formation of a polymer having internal mechanical strain is disclosed. The acoustic emission generated by polymer formation is detected by one or more acoustic sensors attached to a piece of equipment.

Description

FIELD OF THE INVENTION [0001]The present invention is a process to monitor unwanted formation of a polymer having internal mechanical strain. By way of example of said polymers having internal mechanical strain are the popcorn polymers. Popcorn polymers are known to form from all manner of organic material, particularly olefinically unsaturated monomers, including olefins and diolefins; especially susceptible are the conjugated diolefins, e.g. butadiene and isoprene, and vinyl compounds, e.g. styrenes and acrylates. Known as popcorn polymers because they resemble popped corn, these polymers are also referred to in the art as sponge polymers, granular polymers, cauliflower-like polymers, nodular polymers, fluffy polymers, proliferous polymers, and crusty polymers. Popcorn polymer has been considered to occur from spontaneous monomer polymerization. It can occur in both liquid phase and vapor phase, and at any stage of use or handling of the monomer, e.g. recovery, separation, manufa...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): G01N29/14
CPCG01N29/14G01N29/032G01N29/40G01N29/48G01N2291/014G01N2291/015G01N2291/0251G01N2291/101G01N2291/105
InventorTHORET BAUCHET, JEAN-PIERREALCURI, GUSTAV
OwnerTOTAL RES & TECH FELUY